I'm curious what you think that means... Cambridge hasn't stood in the way of very much development in Kendall. You can't build 1000' lab buildings, and there's only so much ground in Kendall to put the buildings on.
Look at the slow pace of development, the endless barriers that Cambridge throws up, the near inability to build housing. Sure, right around the T stop, there does appear to be fairly uninhibited development, just massively slowed and delayed, pushing companies out as rents climb.
North of Binney up to Lechmere, however, the maximum you can build is only a couple stories at most over an entire lot. Look at the tiny developments along First st. There's massive demand for these spaces - the older buildings along the river are full and the ones of First have included Zipcar and Hubspot, and Patients Like Me and Foundation Medicine on Second. Not small outfits any of these. Yet you cannot build much, which is forcing more companies out of Kendall.
Furthermore, these deeply arbitrary limits on growth have led to only a pittance of housing being built in the major business district. Kendall remains deserted at night.
These issues were not foretold, rather, it was the desire for control by the Cambridge authorities that are slowing and spreading much of the natural growth.